Sorry but I did not get to make a Delrin MAG case this week.
We have had major problems at work. Our magnetizing system started to malfunction early this week. We spent 4 days isolating all the problems and will be down for a week or two rebuilding it.
We also ran out of MAG stock, more parts will be in next week but without magnets there not much use. C-Systems should have stock again in 2-3 weeks.
Some of you may find our problems interesting. In order to magnetize Neo based rare earth magnets, you must use large amounts of electrical charge. We have a charger about 6 feet high by 3 wide consisting mostly of large liquid capacitors.
A transformer charges the capacitors, and then we release all the energy at once into a magnetic fixture. The fixture consist of large coils with an iron care in the shape of the magnetic and pattern you wish to apply on to it.
So much energy is applied to this core that we need to water cool it just like a PC !
The amount of mechanical stress on the core is very high. In our case too the point where the core was cracked. I was charging some prototype high force magnets for a high pressure MAG version last Friday, and it looks like I over stressed the fixture and caused the crack. This crack grew and shorted the coils, which cause problems with our charger.
Sorry if this is boring you, but as an engineer I think it is impressive to break metal with magnetic force.